Calculating-machine



C. BIRTH.

CALCULAHNAGMACMNE. M'PLICAU'HIWl FILED OCT. 7, 1918.

Patented 'May 11, 1920.l

4 SHEETS-SHEET 2.

mvENToR M 'WITNESSE5.

' ATT RNEY C. BIRTH.

CALCULATING MACHINE.

APPucATxoN FILED ocT. 7, 1918.

Patented May 11, 1920.

4 suing-SHEET s.

c. Bmw. l CALCULATING MACHINE. APPLICATION FILED DCT. 7, 191B.

Patented May-11, 1920.

4' SHEETS-SHEET 4.

A iii N Y@ N u s :IK www l\,

WITNESSES.

NVENTO m M ATTO EY v"S'lA'lES PATENT OFFICE. v

CHARLES BIRTH, OF KINGSTON BOROUGH, PENNSYLVANIA, A ssIGNOn crov'rJALnsl ADDING MACHINE COMPANY, OF WILKEs-BARRE; PENNSYLVANIA, A CORPO- RATION OF PENNSYLVANIA.

CALCULATING-MACHINE.

To' all whom t ma concern:

Be it knownt at 1, CHARLES BIRTH, a

' citizen of theUnited States, residing in the borough of Kingston, Luzerne county, Pennsylvania, have invented new and useful Improvements in Calculating-Machines, of which the followin is a specification.

' Calculating mac ines of the prior art, equipped with printing and automatic line spacing mechanisms, have generally been so arranged that the paper will feed or advance at every operation of the machine.

Such automatic operation of the line spacing mechanism is, of course, necessary 1n Alisting amounts in vertical columns, to preventfimprinting amounts on top of one another, but` as the paper feed mechanism is driven from the main shaft, the paper will also vfeed at every idle operation yof the machine, ;that is, an operation wherein no printing or accumulation of amounts occurs, as well as on each active operation.

,-Nhileseveral .advantages have been claimedfor the advance of the paper on idle strokes, such as the separation of several successive calculations, 4for example, to enable-the operator to more readily inspect and differentiate the same without confusion, yetthe yimprovement of calculating machines, whereby totals are printed in a color l contrasting with that in which the added amounts are printed, together with the designationsjof such total amounts by signs printed incidentally therewith, has reduced -to a minimumthe advisability of providing .blank spaces of more or less extent to sepa :rate successive calculations.

v. Furthermore, the provision of this wasted space becomes an expense 'item in offices where considerable listing is performed; and in the interests of economy, this wastage should be eliminated 'as faias possible.

'.Since,.in` the' operation of adding ma- ,.lfchinesyit is-.cu stomary for the operator to actuate-.fthe-{lllaehine several times between z-it'he:completion.of one calculation and the beginning of a succeeding calculation, in

i-:order tor-assure'liimself that the machine is `:clear befor'en commencing -sucli succeeding calculation, Vand further, since. it is much easier and more logical to rearrange the` performanceof the machine, rather than to atwitempt toyreform methods which have become;

settled habits, of the various adding maf chine operators throughout the country, Iy

have chosen, as one object of this invention,

Specification of Letters Patent. Patnted )lay '11, 1920,' Application led October 7, 1918. Serial No. 257,102. i

column, as follows- 1003.27' l A On some stylesof machines,v it isv customary to head eachseparate calculation with what is known as a clear sign, which occu-V pies a separate line or space in addition to the lines on which the items are? printed, and to indicate each total by a 'designating sign printed on the same line therewith.

A modern adding'and listing machine, 'including a sign printing "mechanism, ii"

equipped with my invention, would list'the foregoing example, as followse" l f 749.82 C (clear sign) 4321.98 225.61 5297.41 T (total sign and amount) 43.59 C (clear sign) 67.25 1003.27 T (total signandamount) A comparison of the two lists will at once disclose the saving of space effected.

My invention, however, is applicable inl other lines of work involving vertical addition. ,-q.

machine T he development oi s, and the many new usest'her o t in relation to bookkeeping methods,'hasife'sulted in the` provision of special printed forms designed" to be inserted about theI vplaten of an add ing and listing machine',fto receive various data. lVith such a form,'the' spacing lei'- fected by idly stroking themachine, is not desired, and would be a posit'ivedisadvan tage, as when -the formY is designed to accommodate a certain number of items, printed in a desired arrangement.

debits (as checks drawn by the customer) are accumulated, another set of counters being reserved for the accumulation of credits (as deposits). The total registered on one set is then subtracted from the total on the other set, and the balance printed.

Cards or loose leaf sheets bearing a special printed form, are respectively assigned to each customer, and each' time his account is made up, Ahis card is irst inserted in the ledger posting machine, and the amountI of his .previous .balance accumulated on one set o1 counters and printed. The individual checks drawn by him are accumulated on cheeks cheeks Deposits. i

oidbal. cheeks 'New balance.

1234.56v Jul 1. 99.81 23.70 ,84.29 i Jul 1,' '780.80- lJul 1f 1526.04

1526.04 Jul 2,

' From the above form it will be noted that there is a Iconsiderable amount of space wasted, depending upon the number' of 'checks drawn and deposits made each day.

In an active account, it is not at all unusual to list twenty or more checks each day, and

'generally but a single deposit..

The Tales type of multiple' counter machine, which is fully disclosed in the'co,

`pending application of Pentecost, et al. Serial No. 245,273, filed July 17 1918, when equipped with the invention forming the subject matter of the present application, is enabled to perform vertical ledger posting, upon a formas follows- John Doe 73 Wood'St.

Jul 1 6B 1526.04 N. B. 1526.04 O B.

101.88 ck 18.74 ck 581.86 Ck 23.80 ck 14.21.01( 921.84 Dep.

A 6B 1767.89 N. B: above ledger form is retained and Jul 1 .lul 2 .lul 2 Jui] 2 i The Philadelphia, vPa. i,

.T1112 v'921.844 .T1112 1767.89

entries made thereon from day to day until it is filled, whereupon it is.,filed away for reference, and a new card provided for the customer.. These cards serve as ledgers, and

constitute a permanent record of the transvactions between the customer-and the business house. It will readily be seen-that on forms of this and similar .kinds designed to accommodate a certain number of items, unnecessary line spacing would be an inconvenience. y

Comparing the vertical ledger posting system with the horizontal'postingl system,

'it will be at once evident that the former is' the moreleconomical and logical in arrangement, asA well' as being more readily'performed, the amounts following one beneath the other, those designated by the abbreviations 0.13. (old balance) g Dep (deposit) Q9 (subtraction sign) and B. (new balance); being printed ina, color contrasting with that in which the amounts designated ck (check) vare printed, to indicate credits. Also the dates are .printed by type differing from that in which amounts are printed, to avoid cofusion.

(')bvi.oufsly, the particular sequence aboveI outlined.v may be varied, the ,designating abbreviations omitted,` or signs substituted, but in any event, the contrasting colors will enable the operator to readily identify the amounts. j

Furthermore, a total of the checks may be printed, if desired', beneath the list of individual checks.

ln effecting an economy in the use of paper, l contrivel to prevent the line space feed of the sheet on idle strokes, without preventing idle stroking ,of the machine ac cording to the customary operation.

Also, have arranged to eliminate the advance of the paper inline spacing direction,

' 5 in clearing operations, which heretofore resulted in the imprint of a sign at thehead of the column separately from the succeeding amounts.

The foregoing and other objects will `my invention, associated with the coacting elements ofthe machine, the total key Ibeing depressed, to render ineffective the line space disabling mechanism;

' Eig. 3 is a simllar View, showing the clear .v shaft 300, or its tube 300), carry rolls 3110d key depressed;

Fig. 4c is a perspective detail of one 'ele-'1 ment of the train of line space disabling mechanism; and

Fig, 5 is a sectional view of a Wales mul-l tiple counter machine, to permita better comprehension of the operation of the device.

In the 1V ales multiple counter machine,

vin connection with which have chosen to illustrate my invention, a-l base 968 (Fig. 1) supports side frames 969 between which are mounted from front to rear, a keyboard` or indexing section, an accumulating section; and a printing section, including a4 platen 2094. .It will be understood'that myv invention is'applicable to a single counter machine, as well-as to multiple counter machines. T he numeral keys 117 (Fig. 5) ofthe keyboard or indexing section' are arranged` in denominational rows, and depression of the' keys. according to the amount to .be accumulated, operates separate levers ,116 con-` --nected to the individual keys, to project the respectivestops 115, correspondingly arranged in denominational rows, into the paths of denominational positioning bars The' stops 115, whenprojected, displace spring-pressed detents 221, of which -there is one for each-denominational row of stops, .Imfhi-eaftletents arrest-,the Corresponding .P0- sitioning bars 310 inzcaseno vstops areprogemela-The ,pos1tioning'bar detents arev -en? the side flfames- 969i; and springs 280 tore .the lpositioning bar detents to effec'- .t1v eposition, a upon the withdrawal of the projected stopsll. y

. Front arms 312 vj ournaled on a cross shaft r300, or enga .tube-300" ',inclosing'the cross shaft, and rear arms 311 journaled onv aand restoring bar 294 mounted in levers 220 vjournaled on a cross rod 508d supported in 'posts 968' projecting upwardly from lthe base 96s. Tensioned-springs 383 connect'the restorshaft, operates tojreturn the parts'to,`and

to hold the levers 220'elevated,as shown in cross rod v301, pivotally support the several denominational positioning bars: 310 for forward and rearward travehV Control of the positioning .bars .is effected as follows- 70 lRestoring links 312d (Fig. 5.) connected at L thelr upper ends to offsets 312m of the respective forward arms 312, are forked at thelr lower ends to embrace a restraining ing links 312d with a slotted guide and so anchor plate 220 fastened to the restraining andrestoring bai-'294, ythe forked ends of the restoring links passing through the slots in the anchor plate, for guidance. The slotted anchor plate also preserves theproper spacing between the links.

Swinging arms 323 journ'aled on the cross entered in camslots22-0m in the levers 220. Links'214 connect the arms 323Ywith cranks 212 on the main drive shaft 200 journaled in the respective side frames 969d (Fig. 'A main restoring spring 285 (Fig. 5) ccn nected to a crank 228 on the main drive retain them in, normal idle position, wherein the swinging arms' 323 are at the rear- /ward Aend of their travel, with 'their `rolls 340d near thejrear ends of the slots 220m,

Fig. 5. The'le'vers, yiii turn, retain the restraining and restoring bar 294: in elevated position against the forked ends of the restoring links 312d which hold the front and rear supporting arms 312, 311, and the y positioning bars v310 in their retired positions against the tendency of the drive springs 383 to advance the bars;

Segmental racks or drive lmembers 4:10, whose stocks 4?:10. are journaled on a cross shaft 401 intermediate shaft 300 and rod 301, are pivotally connected at 450 to the 'reournaied cna cross shaft 202 extending be-l nominationa'l drive member' 410. i

nbers 410, as follows- The opposite ends vof each axle 4.00 rest on vertically l shiftable ,supporting `plates 30 bers or props 31g pivotally connected at their upper ends to the respective supporting arms 522,

are slotted at their lower ends at 319m, to accommodate the' opposite ends of a trip bar mounted in and traveling with the swinging arms 323 which control the levers 220. The trip rod 303 travels in an arc, and when the machine is idle, is held at the upper end of its course by the swinging arms 323. ln such position, the' trip rod, through the props 31), supports the vertically slidable plates at their upper limit of movement, andthe plates, in turn, maintain the' counter pinions s'l out of mesh with their corresponding segments or drive members 410. n,

"lfi'irning the drive shalt 200 forwardly,

against the tension of the main restoring spring 285, draws with it the .links 21sL te advance the swinging arms 323 and lower the trip rod 303.

The'arms 323 cause their rolls 3+l0l to traverse the cam slots 220m ot the levers 22() to rock the levers and the restraining and restoring bar 29-1, downwardly, and further tension the drive springs 383. The springs, in turn, pull downwardly the restoring links 312"i to rock the front .arms 312 forwardly and aovance the positioning bars'll() until they are arrested by the projected stops 11-5 or by the detents 221 in those denominations wherein no stops have been projected. The continued travel of the levers 220 and bar 294 after the arrest of the positioning bars merely increases the tension on the springs The positioning bars on their advance,

.rook the drive racks 41() and the rear sup.

porting arms 311 forwardly.

Meanwhile, the trip rod 5423 (Fig. 1) has been lowered in an arcuate path to depriif'e the props or oounter-disengaging members 319 of support, but the counters are `still held disengaged from. the drive members l1() by detaining legs or members 316 pivoted at their upper ends to the studs 356 projecting from the vertically slidable plates 3241, and having feet 316m adapted to seat on rests 95S" swiveled in the side frames. Bridle links 321-pivoted to the respective legs, are slotted, as at 321m, to ac cominodate the trip rod 303, which idly travr the slots in the lower ends of the 319 and in the bridle links 2321 until, the end of the forward stroke of the main drive shaft, and `after .the lpositioning; bars 310 and racks oridrive, members 41.0 have completed their advance, the rod contacts the end walls ol'l the slots in the bridle links to trip the legs or detaining members 316 off the rests 958, whereupon the vertically slidable plates 324 drop, to mesh the. pinions 435 on the countersllll), 49()X with the advanced drive members 410.

Releasing the main drive shaft at the end-of its forward stroke, enables the re- I storing spring 285 to' restore the shaft and connected parts to normal idle position.

The main drive shaft on its return stroke,

'forces the links 21.4 rearwardly to restore register thereon an amount corresponding,r to the numerical values of the depressed' keys.

At the same time, the trip rod 303'is idly retracing its path and traversing the slots :in the bridle links 321 and counter-disengaging members 319, until, near the end of the return stroke, and after the retirement of the racks or drive members 4:10, the trip rod contacts the upper ends of the slots 319lll in the props 319 to raiseJ the latter and the supporting arms 322 connected thereto, and thereby lift the vertically slidable supporting plates 324, to disengage the counter pinions li135 from the retired drive members 410 and sustain them in such disengaged position.

The supporting arms 322, when. raised, draw upwardly the detaining members 316 until the feet 316m clear the seats of the steps 955, whereupon springs 3851 snap the legs into place on the -seats in readiness for another operation.

Suitable carrying mechanism effects the transfer of excess digits from counters of lower denomination to those of next higher denomination.

The printing of the individual items registered on the counters, is accomplished in the following manner.

Links 515 Fig. 5) connect extensions 311m of the rear arms 311 with denominaJ tional typecarriers 514, the heads of which each carry a vertically arranged series of types SG1 corresponding 4to the values of the keys in their respective rows.

As the rear supporting arms 311 rock forwardlywith the front supporting arms o individuall latches '511 associated with their respective'- printing hammers 510, which ci operate with-the types; rl`he hammers 51() are further controlled by mechanism com- Ymonj,tothe lVales type of machine, oper! ated'froin the main drive shaft, including a vuniversal retaining pawl 518, ywhich pawl,

. whendisplaced in normal operations of the machine, releases the hammers to effect the impression of the types on the paper carried by the platen.

()n the return stroke of the main drive shaft, the typecairiers 514 are lowered to their home positions, and the printing hainmers 510 recocked by the resetting bail 5091.

,It will be remembered that in the adding operation of the machine, as above explained, the counters 490 or 49()X remain disengaged. from their drive members or racks 41() until the end of the forward stroke of the main drive shaft, when they engage Atheir racks and remain engaged until the end of the return stroke. f

Clearing the counters in readiness for the next calculation,` is commonly `effected by reversing theI direction ofrotation of the counters, which operation is readily -accoin plished by changing the times of engagelment and disengagement of the counters and drive members, as follows- An angular coupler 326f (Figs. 1, 2 and 3)*slidably mounted on the forwardly. extending arm of a set lever 31T" fastened to a projecting end of the cross shaft- 300, has an upwardly extending arm 32(3-, which is notched to accommodate a. pin 355 on the stein of a clearing key 32T. A spring 582 holds the coupler effective.

Depression of the clearing ley operates through the coupler to rock the set lever` 317", and the shaft 300, to the opposite end of which i's secured a somewhat similar lever (not shown). Links 315 (Fig. 1) connect the upstanding arms of the levers 317" with lthelegs or detaining members 3,16 of the supporting plates 324,v anddisplace the legs relatively to their seats 9580. At: the saine time, they upstan'ding arm of vthe lefti hand "leven 3171* contactsa stu( `35520,.toiadvancetlie slide. slide 1dion the cross ft l202, toitfurnv the-#latte nr .witheiits a iidfsimilar,armff222ml y n'the shaft A202 ai'ijdfconne ed by;

denominational positioning bar detents 221 on the main drive shaft, fits over a stud 354 on the set lever 31Tb to lock the-latter in depressed position, and. thus relieve the opei'ator ofthe duty of maintaining the clearing key 327 depressed againstA the tension' of its restoring spring 384 and the tension of the set lever restoring spring 382.

Furthermore, an arcuate rib 217 on the quadrant inter'poses itself over the stud 354m as the main drive shaft 200 starts on its forward stroke, to continue to maintain the set lever 317" where adjusted, during the forward stroke of the main drive shaft.

Upon starting to turn the drive shaft 21)() forwardly, the vertically sliding supporting plates 324, with the counters 490` or 490", descend with the trip rod 303 because the detaining members 316 have been displaced, and thecounter pinions 435 engage the drive members 41() before the latter advance from their normal retired positions.

The ymain ldri-ve shaft, as it continues its forward stroke,y withdraws the restraining and restoring bar 294 to the opposite end ,ofits'tlirow and tensions the springs 383 to advance the positioning bars 31() and drive members 410, which travel forwardly, and in so doing,turn the engaged counters rearwardly in a reverse direction, until arrested by the vcontact of. cams 411 (Fig. 5) on the respective counters, with lips 612r formed on the carrying ,detents ,612, and located iii thepaths of the cams, at which time the counters all register zeros.

The typecarriers 514 rise as the positioningbars 31() and drive members 410advance underthe control of the engaged counters, to locate at the printing line, the types correspondingto the total amount registered on the counters at the beginning of the clearing operation, but since the imprint of this total is not desired, means are provided to prevent the effective operation of the printing hammers. and hence the latter remain inactive.y

rlhis printer` disabling mechanism is not vherein shown, as it forins no part of the present invention. and is fully set forth and cl-aimed; iii- ;wtlie. copending application of Pentecost & Fisher', file,d.1n1y11,1918, Se; friet-Nei 24511273. to whiqhgreferenceismade. winters ,Jardinage-sed: from. their i 410 priortoithe ref-tlieyina; 5.-.on lienlPfi-il; i. e fx: 1 i

The forwardly projecting aims of counprops 319, with their free ends extending in l advance ofthe props, to points adjacent thrust studs 355 mounted on the 'Set levers i Obviously, as the counter-disengaging props 319 are lowered and raised, the free ends of the thrust links move upand down.

Consequently, after the upwardly extending. arms of the set Ilevers 317b'wh1ch ycarry the thrust studsA 355, rock forwardly inclearing operations, the free ends ofthe thrust links drop behind the studs'when the counter props 319 Vdescend in effecting thev en'- gagement of the counter pinions with ,their drive members. v

As the main drive shaft 200 reaches the end of its forward stroke, the locking stud 354m ot'l the set'lever 3,17h partially escapes around the rear end of the advanced locking rib 217, dueto the tension ofthe set lever restoring spring 382, but the spring is unable to completely restore the set levers, due to the contact of the thrust studs 355 with the. thrust links 314, whichcontact forces the thrustlinks part'way rearwardly and rocks the bell crank levers 313 to press their forwardly extending arms, upwardly against the studs 357d on the detaining members 316. The rear end of the locking rib is beveled or inclined, as at 217', and at the beginning of the return stroke of the main drive shaft, this beveled end is pressed againstthe partially released locking stud 354' and forcibly restores the set levers 317b to their normal elevated positions, whereby, through the thrust studs 355, thrust links 314 and bell n' crank levers 313, to lift the counter-detaining members 316, together with'the vertically slidable axle-supporting plates 324, and thus disengage the counter pinions 435 from their drive members 410 'at -the very outset lofI the return stroke, Abefore the ref straining and vrestoring bar 294 can retire the drive members.

In the event that it is desired'to record the total amount on the counters, and retain the.v amount thereon for further accumulations or other treatment, a totalkey 327b is located adjacent the clearing key 327, the total key having a foot 327'" overhanging the forward end of the setv lever 317". `Depressionojhc total key rocks the set levers in the" same manner .as explained in connec- -tion with theclearing key, to displace the counter-detaining members 316, and the positioning bar detents 221.

'The main drive shaft, onits forward stroke, advances the positioning bars 310 -and drive members 410 under control of the engaged counters 490 or' 490x to reversely. rotate. the counters until the latter are arrested in their zero positions, at' which time 'thetypecarriers 514 have positioned types the total amounton the counters, the disengagement of the counters and their drive members at' the beginning of theA return. stroke is prevented by automatically locking the total key in depressed position, at the end of the forward stroke to prevent the escape of the locking stud'354 of the set lever frombeneath-the locking rib 217, in a manner hereinafter set forth and constituting a partof my invention.

' lConsequently, the counters remain in en gagement with their drive members during the return stroke ofthe main drive shaft, Vwhere/by the drive members on their retirement, as explainedl in connection with the adding operation, turn the counters in adding direction to again cause them to register the total'amount in a manner common in the art- vThe' counters disengage from their drive members at the end ot the. return stroke in the same manner as in adding operations,

Sign printing mechanism may be provided under the control of the clearing and total keys, to vprint indicia to designate that the machine is clear, and to differentiate the tot-al amount from the list of items, but this mechanism is not shown as it has no direct connection with the present invention. A complete explanation of the sign printing mechanism is included in the 'copending application of Pentecost and Fisher, filed July 17, 1918, Serial No. 245,273.

To enable the operator to select the set of counters on which amounts shall be registered, and'to facilitate'pother functions of the machine, not herein referred to, but exf, plicitly described in the copending application of Pentecost and Fishing-above mentioned, counter-selecting heads 418'n (F i g. 1) having their stems 418 (Fig. 2) fast on a cross shaft 402 extending between the side frames, are located adjacent each vertically -slidable supporting plate The selecting heads or members project' upwardly between the parallel counter-,supporting axles '400 and have open-ended slots 418r adapted t0 embrace andconne the-axles, when the members are shifted bv means of a handle 418D conveniently secured to one ofthe heads.

Shifting the lever to either extreme of its throw, interposes the heads beneath the opposite ends of one or the other of the axles` 400 and withdraws the heads from beneath the remaining axle, whereby such last named axle is solely supported y-upon the sliding plates 324 to travel up and -down therewith `during the voperation of the machine, as

hereinbefore set forth. The rirstnamed axle 400, with its counters, is supported bythe heads 418 to maintain the counters out. of engagement with their -drive members.

By locating the handle I418D intermediate its extreme'positions,-the heads 418 extend beneath' the opposite ends of all axles, to prevent the-engagement of the counters and drive members.

Thepaper carriage of the machine includes a bracket 2067. having ways 2067m formed therein, extending across the rear end of the machine and secured to the respective side frames 9691. A carriage slide 2065 shiftably supported between the ways 2067m for endwise travel, carries-end plates '-2010, in which is journaled a platen axle 2004 vextending between the end plates and supporting the platen 2094.

Line speci/faqL mechanism.

.The platen 2094 vis rotatable step by step by means of a. thrust bar 2.026, whose forward end is connected to a cross rod 302 mounted in' the swinging arms 4323. The thrust bar extendsrearwardly and carries a foot 2026p at its rear end a'daptedto contact a universal bail 2002 mounted in swinging arms--. 2016d fast on stud shafts 2053"V journaledfv in4 the opposite. end plates 2010 of the traveling carriage.

vv'hen the vmain drive shaft 2 00 is in its home position. the thrust bar 2026 holds the universal bailv in its rearward position against the tension of a drive spring 2486 (Fig. 2). f

One arm of a bell crank or operating lever 2016 (Figs. 2 and 3) is secured 'to and projects rearwardly from one of the stub shafts 2053", a line space pawl 2014 being pvoted to the bell crank lever. and extendingupin'eitherff direction, 6 5

wardly to coact vwith a ratch t 2020 fixedy to turnfwiththeplaten: i i' A spring; 2082?; 1ic'on ects awl an operating lever 20,16; o'- causathe toot .1eratchet, 211.1

the.. pawl. t0.ariegage3 shoulder} 2016: on theaof ratngqlever vnormally contactsa-.stu d f on the. paw i holdkthelatter Fapartjfrom ratchet when the mainfdrive shaft is in ,ome position', to enable the platen .to be `manually rot l The main drive shaft ion lthe retreating-thrust bar,'and rocks thev arms Ihereinafter set forth.

nism, whereby any numb or operations may ing the paper, whenever 'it stroke, advances the swinging arms 323'and.

withdraws the thrust bar 2026 from ,the uni-.

versal bail 2002. The drive spring 2486 (Flg. 2) forces the universal bail to follow 2016i and operating lever 2016 to retract the pawl'2014 idly over the ratchet preparatory to-taking a new bite thereon..A

' As the swinging arms 323frestore onthe return stroke of vthe main (lrive5shaft, tlei75A 'part of my invention onlyinso, farlaswitis combined to coact with the nov l features As a means to, facilitate the. entry' 'of amounts in their proper {Iiilacesf}onf"' fo'rinsV designed to accommodate if certain ara figei ment, or number of items, without delay, as well as to effect .an economyrjlntheuse ofv paper, in calculatingf-machines .contrivefto normally disable' theli spaingimecha-j .ofgiidiistroke' the carrying mechanism e total, or to assure the operato thy chineis cleared, for v.insta` l Furthermore, AI ,arrang line space disabling mechanism" s'o'that it is rendered ineffective upon an opeijation of: the machine whereby, amoun aif diE To these ends, theref'iie', o I of my invention includes abling lever' o r 'me "b mounted at 564?,'the `re l normallyl lies in the of ithenversali from following the thrust M2026' aisi"'th'e` Y bar is advanced during'th fortvfnd"strokeJ 1;"15 of the main drive shaftf C 'sqiientl'yifthe* line space pawl 2014 does not retract for a"- new biteon the ratchet2020 and the-platen; isv not turned.

ini whit: the "inif Ydisabling lever 524, to hold the Idisabling lever effective against-the tension of aspring 680'?" inferior to the spring 389".

The intermediate bail 329 constitutes a rate the line space disabliig lever, but the bail might readily be omitt and the transmittnlever 329 arran d to directly operate t e line space disa ling lever 524.

Obviously, since the paper must be line spaced in listing amounts in vertical columlis` means must be provided to free the disabling lever 524l vto the action of its spring 680' which shifts the levier to ineffectlve ition.. Therefore, the upper end` of the link 329d is'slotted, as atj329', to embrace a pin 1857 onan Aarm 1814'" fast on a cross shaft 304 journaled in'lthe respective side frames 969d and extending parallel with and `adjacent the rack detent supporting shaft 202. A bail 370 (Fi 5) carried by the shaft 304 rests upon t e offset spring terminal lips 221m on the positioning bar detents 221 which, it will. -be remembered, are raised out" of the paths of their correspondin positioning bars 310 bythe projection of t e key-set denominational stops 115, over whichthe detents extend.

A spring or flexible link 685m superior to spring 389h connects the pin 18571 on the crank 1814m'with the link '329d to vieldingly n hold the bail 370 adjacent the detents 221 .or their lips 221'", and the lower` end of the Y slot 329' in the link 329d adjacent the pin ,'1857, as' shown-in Fig. 1 wherebv to permit the latter to shift in the slot independently of the link 329".

" Depressin a numeral key 117 projects its K stopfll against the lower edge of the detent randthe crank 1814"l thereon.

v221 and forces the latter upwardly a ainst the overlying bail 370 to rock the sha 304 The tension I of spring 685' is such that the upward throw of the crank 1814"" is transmitted through the spring' without materially changing the position of the pin-1857p in the slot 329r in the -link 329", to raise the latter against the tension of the inferior spring 389" and swing the forwardly projecting arm of the transmitting lever 329 upwardly, thereby lowering the shorter rear arm thereof from the forwardly projecting finger 329' of the reversing bail 329b to relieve the pressure thereagainst. This frees' the reversing bail 329" and the line spacel disabling lever 524* to the action ofthe spring 680'", which immediately rocks the disabling lever to ineffective position and permits the universal line space bail to advance on the forward l,stroke of the main drive shaft.

.tioningbar 310 and the inferior spring 389" causes the overlyinlg bail 370 to resume its normal position. he spring 389b also lowers the link 329l and depresses the forwardly extending arm of the transmitting lever 329, to rock the reversing -bail 329" and restore the disabling lever 524* to effective position.

As heretofore explained, depression of the clearing key 327v advances the slide 320 to rock the detent-supporting shaft 202 and the bail 204 extending beneath the several. denominational detents 221, to displace the latter out of the paths of their positioning bars 310.

But such action would also lift the overlying bail 370 and effect the displacement of the line spacedisabling lever 524, as set forth in the explanation of the automatic line space disabling mechanism.

In clearing operations, it is desired -that `no line4 spacing take place, because no printing occurs, as before` explained, 'and hence, to maintain the linespace disabling mechanism effective despite the displacement of the detents 221, I extend the longer forwardlyj projecting arm of the transmitting lever 329 to a point beneath and in the path of the lower end' of the clearing key 327 (Figs. 2 and 3). The extreme end of the transmitting lever may terminate in an upstandin guide 329s extending alongside the front e ge of the clearing key stem 327.

Upon the complete depression of the clear key, the effect of the ositioning bar detents 221 which rock the lliitil 370 upwardly and turn the shaft 304 and crank 1814m to raise the link 329d through the spring 685', and render the line space disabling mechanism ineffective,is counteractcd by the positive contact of the lower end of the clearing key with the forwardly projecting arm of the transmitting lever 329, which returns the lever to its normal position, and through the reversing bail 329", restores the line space disabling arm 5241 to effective posi tion. Such restoration -of the lever 329 draws the link 329d downwardly against the tension of the spring link 685m, the slot 329r in the link 329d permitting relativo movement between the link and the pin 18571, as shown in Fig. 3.

The clearing ,key restores to normal during the return stroke of? the main drive shaft 200 (as previously explained), prior to the .restoration of the positioning bar detents 221, thereby releasing the .transmitting lever 329 to the yaction .of the tensioned spring 685' which then attempts to render :pesares Y the line Space disabling mechanism ineffective, as in adding operations of the machine. But the displacement of the line space disabling lever, 524"1 during the return stroke of the main drive shaft, prior to the restora- 'tion' of the thrust bar 2026 to normal position, -would'permit the line space bail 2002 to advance until arrested by the thrust bar atv some point on its return stroke, and effect at leasty a partial line space operation.

To prevent such disadvantage, I preterably bevel or undercut the rear end of the line space disabling lever 524% lso that the pressure exerted by the spring 2486 in forcing the line space bail 2002 against the undercut end of the disabling lever, when the thrust bar- 2026' is advanced, willhold the lever 5%@ against displacement under the. iniuence of its spring 680m, until the thrust b ar 2026 completes its return travel torelieve the disabling lever 524E1 by slightly I shifting the line space bail rearwardly.

The slide 320 returns to its normal position at substantially the same time with the clearing; key, but owing to the advanced positioning bars 310, the corresponding detents 221 do not restore until the positioning ,bars .have retired, whereupon, the crank 1814lm rocks downwardly and the spring 3891 through the link 32.92 depressestherforward arm of the transmitting lever 329 to i `abling mechanism to function.

It is desired, in totaling operations, to print lthe amount and line space the paper,

. contrary to clearing operations. Therefore,

the clearing key 327 through which the f printer and *4.5.

line space disabling means are controlled,` is disconnected from the set lever 317", to which end, a trip lever 327f (Fig. .2) is pivoted, preferably, on the upper guide stud 950f of the total key, one arm of Whichlever extends rearwardly and carries a projection 354v normally lying directly behind the upwardly extending arm 327f and press the projection against the adjacent arm .coupler 326 to shit'tv the latter forwardly of the angular coupler 326f. A wiper 352t projecting from the stem of the totaling key 3271, enters a cam slot 327" formed in the remaining arm of the trip lever 327i. As the total key 327" is depressed, the wiper 352r traverses thecam slot to rock the lever 354V 'thereon 326m of i the the tension of its restoring spring clearsthe pin 355d on the clearing key 327, whereupon, the set lever 317b under pressure from-"the foot 327p of the total key 327,

continues its downward stroke unaccompanied by the clearing key 327, which is held in its normal idle" position by its restoring spring 384. I

Hence, there. is no interference with the printing hammers 510 which operate to print the amount. Likewise, the effect of displacing the rack detents 224, under the influence of the slide 320, to render the line space disabling lever 524a ineffective, lis not counteracted, and the paper is line spaced in the usual manner during the' return stroke of the main drive shaft 200.

Furthermore, to prevent the manual depressison of the clear key 327 when the total key 327b is in depressed position', there is a stop lug 327S on the depending armof the trip lever 327i, which lug, when the lever is rocked by the depresssion of the total key,

` swings under a stop stud 455 on the clearing key, as in Fig. 2.

Depression of the clear key 327 prior to the depression of the total key 327", locates the stop stud 455 in the path of the stop lug 327S to prevent depression of the total key while the clear key is depressed, as in Fig. 3. y

A flange 327t on the total key 3271 Aoperates to guide the key in its travel.

Spring 384m (Fig. l) restores the total key to normal elevated position, and the key during its return, causes the wiper 352rA to retrace the cam slot 327r in the trip lever 327f, to rock the lever and free the latch 326f7 which, under the influence of its spring 582, ts its recess 326r over the pin 355d on the clear key stem 327 when the set lever 317? restores under the influence of its spring' 382.

As heretofore explained, depression of the total key 327b rocks the set lever 317b and introduces the projection 354m of the set lever beneath the latch 2161 to hold the lever depressed.

It will be noted however, that there is no normally-effective connection between the total key 327' and the set lever 3'17), and if none was provided, the key 4would at least partially restore when relieved of pressure.

As it is desirable to maintain the total key in its depressed position, a locking vmember 325m (Fig. l) of irregular contour, is pivoted to the stem of the total key 327'), at 264W. rlhe forward edge oi' the locking member 3251 near its pivot point 264mis formed into a cam 325p which normally'lies ljust above the end of a rod l0() protruding from the adjacent side frame.` ln the present instance, this rod may conveniently be one of the removable rods which holds the keyboard in place, as illustrated, for example, in U. S. patent to Schleicher and lllilgus, No. 1,203,655, November 7, i916. Also, a shoulder '325r is stroke, turns the plate 211 and with it the ,latch 216d and the arcuate rib 217, to subformed on `the inner edge of the locking ing member 325m, the cam edge 325 of which' wipes along the protruding endlotl the rod 100 to force the locking member rearwardly so that its shoulder 325" lies directly beneath the angular stud 9639 on the set lever 317", and the latter, descending with the total key owing to the contact of the foot 327D therewith, and being locked `where adjusted by the engagement of the latch 216d with the projection 354.1" on the lever, in turn, holds the total key depressed. The relation of the curve of the horn 325 to the pillar 9571 is such that the upper concave edge of the horn always lies closely adjacent the pillar. 'Y

T he main drive shaft 200 on its forward stitute the latter as a retaining member for the projection 354m, orlever 317", in

4place of the latch. As the main drive shaft approaches the end of its forward stroke,`

the rear end of the rib 217 escapes past, the stud 35111 which would allow the set lever 317]) and total key 327 to rise under the influence of their restoring springs 382 and 384', as in the clearing operation, top'revent which, the following lock is provided.

A camming latch 325d journaled at 36 to the side frame, carries a rearwardly projecting earV 325t held against thev forward edge of the crank 212'by a spring 5 821. At the beginning ofthe Yforward stroke, the crank 212 advances and rocks the camming latch 325(1 forwardly over astud 352d on vthe depressed total key 327", in which position the latch 325d remains to hold the total key against release at theend of the for-' ward stroke and the 4beginning of the return stroke. At the .beginning of the return stroke of the main drive shaft, the crank retracts and the spring 582d withdraws the latch 325d to idle position, but. the time necessary to effect the withdrawal ofthe latch 325d is sufficient to enable the locking rib 217 to again pass over the projection 354' to lock the total mechanism in set position.

By reason of the locking lcatch 325', the stud 352d is held in position to be acted upon by the latch 325. As the segmental plate 211 approaches the end of its return stroke, it brings the .rear face of a ielding rocker 218b, pivoted at 258", agamst the projection 354m, contact with which turns the rocker 218" forwardly to cause it to press 'arrangement of the several parts illustrat- Vthelinespacing mechanism; and means conthe dog 216d'outwardly awafrom the adjacent end of the locking ri 217, vso as to enable'the projection, when it rides off the rib, to escape past the dog, and free the set lever 317 b to the action of its .restoring spring 382, which returns the total mechanis'm tovnormal position. A special sign printing mechani's'm may be associated with the machine, to print signs or abbreviations in connection with the imprint 'of amounts, but this -is -well known in the art and requires no description. A

Changes may be made in the form and ing this embodiment of my invention, without departing fromv the spirit and s'cope thereof.

v 'hat I claim as new, is

1. In a calculating machine, the combinationwith indexing mechanism; accumulating and printing mechanisms controlled by the indexing' mechanism; and line spacing mechanism; ,of means to normally disable trolled 'bythe indexing mechanism to render the disabling means ineffective.

2. In a calculating machine, the combination with indexing mechanism; accumulating and printing mechanisms controlledb)v thel indexing mechanism; and line spacing mechanism; of'means to normally disable the line spacing mechanism, including a vshiftable disabling member, normally tendingto remain in one of its positions; 'a transmitting vlever to hold the disabling lever in another of its'positions; yielding means to shift the transmitting lever to, and hold it in, effective position; and means controlled by the indexing mechanism 'to'ffren- 10.5 der the transmitting lever ineffective. 3. Ina calculating machine, the combination with counters drive members with which the counters are adapted to engage and disengage; indexing mechanism to control the excursions-of the drive members: controlling means'to vary the durationof engagement of the' counters and drive members; printing mechanism; and line space mechanism of means operable b v the indexing mechanism and the cont-rolling means. respectively, y to disable the line spacing mechanism.

4. In a calculating machine.the combination with counters; drive members with which the counters are adapted to engage and disengage; indexing mechanism to con'- trol the excursions of the drive members: means to vary the times of engagement and disengagement of the counters and drive members` including a set mechanism. independently-operable keys to adjust the set mechanism; printing mechanism, :ind line space mechanism; of a normally effective line'space disabling device; means operable 1N insane able keys ad'apted to-positively actuate the 5 disabling device to reestablish the line space disabling ldevice in effective position, notvwithstanding thel tendency' of the .set

' mechanism to retain the `,disabling means vineffective.

' 5. In a calculating machine, the combination with counters; drive members with -which thecounters are adapted to engage and disengage; indexing mechanism to control the' excursions of the drive members; means to vary-the time and duration of engagement and disengagement of the counters and drive -members, including a set mechanism, independently-operable Vkeys to adjust-the set mechanism; means to normechanism; printing mechanism; andfline space mechanism; or' a device to normally disable the line space mechanism; means actuated by the indexing means, and by the set mechanism, to render ineffective the line space disabling means; Ithe independentlyf operablekey which is connected with theset 4mechanism, adapted to positively reestablish the line space disabling devicein eifective position, notwithstanding the tendency of the set mechanism` to retain the disabling device ineffective; and means actuated by another of the independently-operable keys to disconnect the last-named independentlyoperable key andthe set mechanism.

6. Ina calculating machine, the combination with an indexing mechanism; a series of counters, and drive members therefor.; the indexing mechanism adapted to control the excursions of the drive members; printing and paper supporting mechanism; line spacing mechanism to advance. the paper; -and detents for the drive members, displace# able by the indexing mechanism; of a normally effective device to disablel the line Vpacing mechanism; and means controlled by the detents to render ineffective the line space disabling device. v

'7. In a calculating machine, the combination with counters; drive membersthereor, with which the counters are adapted to engage and disengage; indexing mechanism adapted to control the excursions of the drive members; detents for the drive menibers, displaceable by the indexing mechanism; 'printing mechanism; and' line Vspacing mechanism; of normally eie'ctivemeans to disable the line spacing mechanism, including a shiftable disabling member; a universal'ba'il operable by anyof the detents; and l'connections between the bail and the'`I disabling member to control the latter.

8. In a calculating machine, the combination withan indexing mechanism; -a series I of'counters7 and drive members therefor, the

mally connect one of the keys with the (set indexing mechanism adapted to controlthe' excursions of the drive members; printing .and papersiippcrting mechanism; line spacing mechanismto advance the paper; independently-operable keys to control the relation between the counters and driare inern- A bers; and detents for the drive members, actuated by `the lindexing' mechanism, and the independently-operable keys; of a normally eHective device to disable the line space mechanism; means contrclled by the detents to render the line space disabling ,means ineiiective; one of. said independently-operable keys adapted to positively restorethe-line space disabling means to effective position.I

9. In a calculating machine, the combination with an indexinginechanism; a series 'fot counters,.-and drive members therefor,

the indexing mechanism adapted to control the excursionsof the drive members; printing and paper supporting mechanism; line spacingmechanism to advance the paper;

independently-operable keys to control the relation between the counters and ,drivemembers; and detents 'for the drive members,actuated by the indexing mechanism, and the independentlyi-operable keys; oi' a normally effective device to disable the line space mechanism; a member common to and operable yby any of the detents; a flexible connection` betiifeen Asaid member :and the line space disabling device, to render the devic'eineiiqective upon the operation of the indexing mechanism or the independentlyoperable keys; one ot' said keys adapted to positively retain/the line space disabling de-y vice eiective.

l 10. In ,a calculating machine, the combination with counters; drive members thereltor, with which the counters are adapted to 'engage and disengage; indexing mechanism' adapted to control the excursions of the drive members; detents for the drive members, displaceablev by the indexing mechanism; printing mechanism; line spacing mechanism; and means to vary the times of engagement and disengagement of the. counters `and drive members, including a set mechanism also adapted to displace the detents; independently-operable keys to ad- ,i

just the setmechanism; and means to releasably connect one `ci' the keys and the set mechanism; ci means te 'disable the line spacing mechanism, disabling member, universal bail' ccnincluding va shiiptable trolled by the detents; a train ci lmechanisin between the bail :and member, including a iexiblc linfa; one of the independently-operable k ys adapted to 'positively actuate the train oi:- mechanism to render the disabling member effectivey` notwithstanding 'the the disabling the disabling member ineffective; and means Y displacement or" any of 'the detents, which normally tendsto render e actuated by another ot the "independentlyoperable keys to disconnect the tirst named indepimdently-operable key and the set mechanism, whereby to prevent said key 'from restoring the disabling member to effective position when the set 'mechanism is drive members relatively engageable and disengageable; printing mechanism; line spacing mechanism; totalii'ig and clearing mechanism; independently-operable keys to actuate the totaling and clearing mechanism; and means to releasably connect one of the keys and the totaling and clearing mechanism; of a line space disabling mechanism operable by the last-named key; and means controlled by the other of said keys to disable tlie'releasable connecting` means 'coupling said last-named key and tlie total- 'ing and clearing mechanism.

18. In a calculating machine, the combination with a set of counters, and a set ot drive members relatively engage-able and disengageable; indexing mechanism; printing mechanism; line spacing mechanism; totaling and clearing mechanism; independently-operable keys to actuate the totaling and clearing -mechanism and means to releasably connect one of the keys and ,the totaling and clearing mechanism; of a normally effective line spac'e disabling mechanism; yielding means operable by the totaling and clearing mechanism, and by the indexing mechanism, to render the line space disabling mechanism ineffective; the key which is connected with the totaling and clearing mechanism adapted to positively retain the line space disabling mechanism effective, notwithstanding the tendency ot the totaling and clearing mechanism to render it ineffective; and means controlled by another of said keys to release the connection between the remaining key and the totaling and clearing mechanism, whereby to enable the latter mechanism to render the line space disabling mechanism ineffective upon the operation of the totaling and clearing mechanism by said other key.

14. In a calculating machine, the combination with a series of counters, and a series of drive members relatively engageable and disengageable independently-operable keys;

means controlled by that independently-operable key which is connected with the set mechanism; and a tripping means controlled byl another of the independently-operable keys, to release the connecting means between the first-mentioned independently-operable key and the set mechanism, to preventv the operation of the disabling means by the first-mentioned independently-operable key when the last-mentioned independently-operable key is actuated to adjust the set mechanism.

15. In a calculating machine, the combination with indexing mechanism; accumulating and printing mechanisms controlled. by the indexing mechanism; and line spacing mechanism; ot means to normally disable the line spacing mechanism, including ay shiftable disabling member, normally tending to remain in one of its positions; a transmitting lever to hold the disabling lever in another otl its positions; and means controlled by the indexing mechanism to render the transmitting lever ineffective.

16. In a calculating machine, including printing and line spacing mechanisms, the combination with a series of counters, and a series of drive members, adapted for engagement and disengagement; independently-operable keys; a set mechanism, adjustable by said keys to vary the engagement and disengagement of the counters and drive members; and releasable means to normally connect one of the independentlyoperable keys and the set mechanism; of a line space disabling mechanism controlled. by the last-named key; and means operable by another of the keys to release the connection between the first-named key and the set mechanism when the last-named key is operated, to prevent the operation ot the line space disabling mechanism.

17. In a calculating machine, including printing and line spacing mechanisms, the combination with a series of counters, and a series of drive members, adapted for engagement and disengagement; independently-operable keys; a set mechanism, adjustable by said. keys to vary the engagement and disengagement of the counters and drive members; and releasable means to normally connect one of the independently-operable keys and the set mechanism; of a line space disabling mechanism controlled by the last-named key; tripping means operable by another of the keys to release the connection between the irst-named key and the set mechanism whenl the last-named key is -operated, to prevent the operation of the line space disabling mechanism; and a stop to enact with the tripping means, to prevent l depression oi" eitherkey when the other is means to releasably connect one of the keys and the set mechanism; of means controlled by the last-named key, to disable the line space mechanism; and trip means controlled by another oil the keys to release the connection between the first-named key and the set mechanisim to prevent actuation of the line space disabling means when the second-named key is operated.

19. ln a calculating machine, the combination with a set of counters, ,and a set oi drive members adapted for engagement and disengagement; printing 'and line spacing mechanisms; totaling and clearing keys; a set mechanism common to both; and a coupler to releasably connect the set mechanism and one of the keys; of means, operable by the clearing key, to prevent eiective. operation cf the line spacing mechanism; and a lever operable by another of the keys, to actualite the coupler and disconnect the set mechanism and the clearing key, to render the latter ineffective to operate the line space disablingmechanism when the second-named key is operated.

20. In a calculating machine, the combination with a set of counters, and a set of drive members adapted for engagement and disengagement; totaling and clearing keys; a set mechanism common to both; and a coupler to releasably connect the set mechanism and one of the keys of a controlling lever, one arm of which is adapted to operate the coupler, the opposite arm having a cam slot therein; and a stud s'hi'table with anotherof the keys, and entered in the Islot ,to rock the lever.

' 2l. lin a calculating machine, the combination with a set of counters; anda set of drive` members adapted for engagement and disengagement; mechanism to control the time and duration of engagement of the .y l counters and drive members, including independently-oy'ierable keys, each of which actuates said controlling mechanism; and means to releasably connect one of the keys and the mechanism; of means controlled by another of the keys to disconnect the firstnamed key and the said mechanism, and to prevent operation of the first-named key.

22. ln a' calculating machine, the combination with a set oi'counters, and a set of drive members adapted for enga-gement and disengagement; mechanism to control the time and duration of engagement of the counters and drive members, including independeiitly-operable keys, each'of which actuates said controlling mechanism, and means to releasably connect one of the keys and the mechanism; of means controlled by another of the keys to disconnect the first-named key and the said mechanism, and to prevent operation of the first-named key; said means also adapted to prevent the operation of the second-named key when the Y(iistnamed -key is operated.

23. In a calculating machine, the combination with a set of counters, and a set of drive members adapted for engagement and disengagement; independently-operable total and clearing keys; a set mechanism common to the respective keys; and a coupler to connect the clearing key and the set mechanism; of means operated by the total key, to release the coupler and prevent operation of the clearing-key, said means also effective to prevent operation of the total key when the clearing key is in depressed position.

24. In a calculating machine, the combination with a set of counters and a set of drive members adapted for engagement and disengagement; of settable mechanism to conti-el the time and duration of engagement oi the counters and drive members, including independently-operable keys, and a set lever common to both; means to releasably connect one of the keys and the set lever; a releasing lever operable by another of said keys to disable the connecting means and free the first-named key from the set lever; a stop carried by the First-named key and adapted to coact with the releasing lever to prevent the depression of either key when the other is inv depressed position.

25. In a calculating machine, the combination with a set of counters, and a set of drive members, adapted Jfor engagement and disengagement; of a set mechanism to vary the time and duration of engagement ci' the counters and drive members, including a key to operate the same; a latch to connect the key and set mechanism against disengagement, when the key is operated; and means to shii't the latch into and out of eii'ective position as the key isoperated.

26, In a calculating machine, the combination With a set or' counters, and a set of drive members, adapted 'for engagement and disengagement; a set mechanism to vary the time and duration-of engagement of the counters and drive members, including a key to .operate the same; a latch adapted to travel With the key and having cam faces thereon.; an abutment wiped by one ofthe cam aces during the travel of the key in one direction, to shift the latch to effective position wherein it connectsthe key and set mechanism; and a second abutment wiped by another of the cam faces during the travel of the key in the opposite direction,l

and d-ise'ngage; indexing mechanism to control the excursions of the drive members; eontrolllng means to vary the duration of engagement of the counters and drive members;' printing mechanism; and line space mechanism; of a line space disabling member shiftable to effective or ineffective position, and means, operable bythe indexing mechanism and the controlling means, re-

spectively, to effect the actuation of the line.

space disabling member to onevof its y"positions.

y CHARLES BIRTH. lVitnesses NELLIE E. LAW, HELEN BLACKLEDGE; 

